Watchmaker&#39;s tool.



J. E. SMITH. WATCHMAKERS TOOL. APPLICATION FILED AUG. 2, 1911.

2 SHEETS-SHEET 1.

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COLUMBIA PLANOGRAPII CU.,WA$IIINGTON. n. C.

Patented Apr. 30, 1912.

J. E. SMITH. WATGHMAKEB'S TOOL; APPLIOATION IILED AUG. 2, 1911.

1,024,530. Patented Apr. 30, 1912.

2 SHEETS-SHEET 2.

JOHN ELMER SMITH, OF TURLOCK, CALIFORNIA.

WATCHMAKERS TOOL.

Specification of Letters Patent.

Application filed August 2, 1911.

PatentedApr. 30, 1912.

Serial No. 642,017.

To all whom it may concern:

Be it known that 1, JOHN ELMER SMITH, a citizen of the United States,residing at Turlock, in the county of Stanislaus and State ofCalifornia, have invented new and useful Improvements in WatchmakersTools, of which the following is a specification.

The invention relates to a watch-makers tools, and more particularly tothe class of pallet jewel setters.

The primary object of the invention is the provision of a tool of thischaracter in which a watch-maker may quickly and accurately set thepallet jewel of a pallet.

Another object of the invention is the provision of a tool of thischaracter in which the escapement wheel of a watch and the palletthereof may be adjusted, one relative to the other, whereby the palletjewel can be properly and accurately set in the pallet.

A further object of the invention is the provision of a tool of thischaracter which is simple of construction, capable of being readily andconveniently handled by a watch-maker, and that is thoroughly reliableand eficient in operation, and inexpensive in manufacture.

'lvith these and other objects in view, the

invention consists in the construction, com-' bination and arrangementof parts, as will be hereinafter more fully described, illustrated inthe accompanying drawings, and pointed out in the claims hereuntoappended.

In the drawings: Figure 1 is a top plan view of a tool constructed inaccordance with the invention, the pallet and escapement wheels beingshown in dotted lines supported thereby. Fig. 2 is an edge elevationthereof. Fig. 3 is a sectional view on the line 33 of Fig. 1. Fig. t isa sectional view on the line H of Fig. 1. Fig. 5 is an end elevation ofthe tool. Fig. 6 is a vertical longitudinal sectional view through thetool.

Similar reference characters indicate corresponding parts throughout theseveral views of the drawings.

Referring to the drawings by numerals, the tool comprises a flatelongated plate or bar 10, the same terminating at one end in a shank 11securely fitted within a handle 12, while the opposite end of the plateor bar is downturned to form a bearing ear 13 disposed at right anglesto the plate or bar 1O, the latter being provided with a guide slot 14:arranged medially thereof, and extending a portion of the length of thesame, the outer end of the slot being of increased size with respect tothe remaining portion thereof, for a purpose as will be hereinafter morefully described. Spaced from the inner end of the slot 14 in the plateor bar 10 and integral with the latter are oppositely extendinglaterally curved arms 15 projecting from opposite faces of the saidplate or bar 10, the ends of the said arms 15 being formed with slottedsleeves 16 provided with parallel pairs of ears 17, one ear of each pairhaving loosely passed therethrough a binding screw 18, the same beingthreaded in the other car of each pair, whereby on the turning of thebinding screw in one direction, the slotted sleeves will bind uponcentering pins 18 removably fitted therein. These pins 18 are eachprovided at one end with a tapering point 19, while its opposite end isformed with an inwardly tapering cavity or bearing seat 20, which isadapted to receive the arbor extremity of a pallet 21 when positionedbetween the pins for the holding of the pallet in the tool. It isevident that on reversing the pins 18 in the split bearings 16, thepoints 19 thereof may be engaged in the bearing cavities in oppositeends of the arbor of a pallet 21, should the said arbor be provided withsuch cavities.

Slidably fitted in the guide slot 14 in the plate or bar 10 is a movableblock 22, the opposite edges of which are provided with suitable grooves23 receiving the longitudinal edge wall of the said slot 14, and

formed integral with the said block 22 are laterally extending arms 24:which are similarly curved with respect to the arms 15 and are arrangedin parallel alinement therewith. The outer ends of the arms 2 L areprovided with slotted sleeves 25 identical in construction to thebearings 16 and they carry the ordinary binding screws 26, whereby thesame may be tightened upon the pins 18 when fitted therein for thesecure fastening of the same in the said bearings 25. These pins 18 whenfitted in the sleeves 25 are engaged with the arbor 0r pintle of anescapement wheel 27, whereby the same may be held in its true relationto the pallet 21. It is obvious that when the block 22 is adjusted inthe guide slot ll, in the plate or bar 10, the escapement wheel 27 maybe brought close to or spaced the required distance from the pallet whensupported by the tool.

Formed medially in the bearing car 13 on the bar or plate 10 is abearing notch 28 in which is engaged the turning head 29 of an adjustingscrew 30, the latter being in threaded engagement with the block 22 forthe adjustment thereof. The head 29 of the adjusting screw 30 is formedwith an annular groove 31 receiving the bearing ear 13 when the saidhead 29 is fitted within the bearing groove 28, thus preventing thedisplacement of the adjusting screw 30 longitudinally with respect tothe bar or plate 10 on the adjustment of the block 22 in the guide slot14L in the said bar or plate, when it is desired to accurately posit-ionthe escapement wheel 27 with respect to the pallet.

Secured to the bar or plate 10 and projecting outwardly therefrom atright angles to the guide slot 14 therein is a jewel supporting bracketcomprising a fiat arm 32, the same being provided with a sectorshapedscale table 33 intermediate its ends, which is provided with radialgraduated scale marks 34, in its upper face, the center of the table 33being provided with a perforation 35 which is in true alinement with thepoints 19 of the pins 18 held in the sleeves 16 on the free ends of thearms 15 carried by the plate or bar 10, so as to receive the arbor ofthe pallet 21 supported by the said pins 18, and this pallet 21 restsupon the scale table 33, so that the pallet jewel 36 may be properly setin the pallet at the proper angle with respect to the escapement wheel27. lVhen the pallet jewel has been positioned on the pallet 21, th(watch-maker places the required amount of shellac upon the scale table33, whereupon the arm 32 is heated to the required degree, whereby theshellac will become melted about the pallet jewel 36, so that when theshellac has become cooled, the same will harden for the setting of thepallet jewel in the pallet 21 in proper position with relation to theescapement wheel.

From the foregoing description, taken in connection with theaccompanying drawings, the construction and operation will be readilyunderstood, without requiring a more extended explanation.

What is claimed is:

1. A tool of the class described, comprising a plate having a guide slotopening through one end thereof, laterally extending arms on andprojecting from opposite faces of the said plate, slotted sleeves at thefree ends of the said arms, a movable member fitted in the guide slot ofsaid plate, arms projecting laterally from the said member at oppositesides thereof in parallel relation with respect to the first-named arms,slotted sleeves formed at the free ends of the said last-named arms,centering pins removably fitted in the said slotted sleeves 011 thefirst and last named arms, and a scale bar carried by the said plate andextending medially between the first-named arms.

2. A tool of the class described, comprising a plate having a guide slotopening through one end thereof, laterally extending arms on andprojecting from opposite faces of the said plate, slotted sleeves at thefree ends of the said arms, a movable member fitted in the guide slot ofsaid plate, arms projecting laterally from the said member at oppositesides thereof in parallel relation with respect to the first-named arms,slotted sleeves formed at the free ends of the said last-named arms,centering pins removably fitted in the said slotted sleeves on the firstand last named arms, a scale bar carried by the said plate and extendingmedially between the first-named arms, and means for adjusting the saidmember.

3. A tool of the class described, comprising a plate having a guide slotopening through one end thereof, laterally extending arms on andprojecting from opposite faces of the said plate, slotted sleeves at thefree ends of the said arms, a movable member fitted in the guide slot ofsaid plate, arms projecting laterally from the said member at oppositesides thereof in parallel relation with respect to the first-named arms,slot-ted sleeves formed at the free ends of the said last-named arms,centering pins removably fitted in the said slotted sleeves on the firstand last named arms, a scale bar carried by the said plate and extendingmedially between the first-named arms, means for adjusting the saidmember, and means engaging the slotted sleeves for binding the sameabout the pins.

l. In a tool of the class described, a supporting plate terminating atone end in a handle, means projecting from opposite faces of the saidplate, and means mounted in the first-named means for centering a palletand escapement wheel of a watch with relation to each other.

5. In a tool of the class described, a supporting plate terminating atone end in a handle, means projecting from opposite faces of the saidplate, means mounted in the first-named means for centering a pallet andescapement wheel of a watch with re lation to each other, and means forindependently adjusting the position of the escapement wheel withrespect to the pallet.

(3. In a tool of the class described, a supporting plate terminating atone end in a to support pallet jewels with relation to the 1 handle,means projecting from opposite pallet.

faces of the said plate, means mounted in In testimony whereof I aflixmy signature the first-named means for centering a pallet in presence oftwo witnesses.

and escapement wheel of a watch with relation to each other, means forindependently a ELMER SMITH adjusting the position of the escapementWitnesses:

wheel with respect to the pallet, and a scale G. S. WRIGHT,

arm carried by the said plate and adapted A. JOHNSTON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0."

